kendo101 0 Newbie Poster

Hi,
Was wondering if anyone had a similar problem and found a solution.
Recently upgraded to WMP 10 and its working good but whenever i put in a DVD, it wont play.
It has a playback error and asks me to reduct resolution or color quality.
I have a 17" CRT monitor so its kinda old but i've tried putting resolution to lowest and every other combination availble to no luck.
The thing is, it plays avi, mpg, VCD perfectly just no DVD discs.

ANy suggestions?

Thanks!